Home / 2,913.20-4,366.72-2,091.02

Finding the Fourth Proportional to 2,913.20, 4,366.72 and 2,091.02

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Solution

The fourth proportional to 2,913.20, 4,366.72 and 2,091.02 is: 3,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.20 : 4,366.72 = 2,091.02 : x
  2. Step 2: Convert to fraction form
    2,913.20/4,366.72 = 2,091.02/x
  3. Step 3: Cross multiply
    2,913.20x = 4,366.72 × 2,091.02
  4. Step 4: Simplify right side
    2,913.20x = 9,130,898.85
  5. Step 5: Solve for x
    x = 9,130,898.85/2,913.20
  6. Step 6: Final answer
    x = 3,134.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.